In addition, the following concepts need to be included:
Profiling GPU Rendering - quick visual representation of how much time it takes to render the frames of a UI window relative to the 16-ms-per-frame benchmark.
Visualizing Overdraw - Shows on the device where an app might be doing more rendering work than necessary. Helping you see where you might be able to reduce rendering overhead.
Heap Viewer - Identifying memory leaks
LeakCanary for finding memory leaks easily
Allocation Tracker - Finding the places in your code that may contribute to memory trashing.
Batterystats - Shows where and how processes are drawing current from the battery.
Batteryhistorian - Visualize system and application level events on a timeline. Guide to getting started
Check out the following links regarding optimizing performance: